Chapter 18 The Rules of the Magic Girl꞉ Power and the Price of Pleasure
Edited by: Kanaa-senpai
So, we sat down and I explained everything about the situation again.
I covered the part about coming from Japan, the powers of the Quester, the Resource Points, the Ego Points, and even the grim detail about my limited lifespan.
Cleonora listened with intense curiosity to every detail.
”I see now… you possess immense power, so I suspected there would be some kind of price for it. But to think it was in exchange for a lifespan of less than a month…” she mused.
”Well, the lifespan issue is easy! Emerald just needs to have s*x with Shou every day, ne—!” Ami-chan chirped.
”Mmph…”
Emerald’s cheeks instantly turned bright red. Honestly, she’s been in this form all day.
I hadn’t told them about my suspicious set of skills, by the way. Seeing that Ami-chan hadn’t bothered to bring it up, I figured she’d decided it wasn’t necessary to mention.
”Now then… until now, I’ve only told Shou that Ego Points are needed for manifesting Maids, scouting Magical Girls, and traveling to Japan. But essentially, they’re necessary whenever power derived from me is being used, y’know?” Ami-chan explained.
I got the general idea. Most of the powers that use Resource Points are linked more to the abilities of the Dominator (the Quester).
Conversely, Ego Points must be what’s needed to fully unleash Ami-chan’s power.
What is Ami-chan, anyway, that she can use a person’s ego as energy? That question always lingers in the back of my mind.
”Since the Magical Girls are a power that originates with me, naturally, all sorts of things involve Ego Points.”
”Specifically, what is affected by them?” Cleonora asked, ever the pragmatist.
”First, they’re consumed during the transformation,” Ami-chan confirmed, with a shrug of her voice.
According to Ami-chan, Ego Points are consumed when a woman who has formed a pact transforms into a Magical Girl.
However, unlike the Maids, once the transformation is complete, they don’t constantly drain points just to maintain the form.
”So, if I don’t keep saving up Ego Points, a Magical Girl won’t be able to transform in the first place…” I surmised.
”That’s right! Now, you might be thinking, ‘Why not just stay in that form all the time?’ but there are conditions that will forcefully cancel a Magical Girl’s transformation.”
”What?” I flinched, recognizing a major flaw.
”First, when she suffers massive damage. Also, if she loses consciousness, the transformation is canceled. This includes sleep.” Ami-chan revealed.
While a Magical Girl can unleash immense power compared to her pre-transformation state, it seems she can’t maintain that power indefinitely.
It’s impossible for her to remain active without ever sleeping, and this means she can’t even take a nap without reverting.
”Also, the transformation cancels if her Magic Power is completely exhausted. By the way, Emerald, how much Magic Power do you have left right now?”
”Let’s see… I think I’m under half,” Eme-chan replied, shaking her light green hair. Childish cute indeed.
”But having spent the whole day in this form, I can tell you this: I possess about five times the Magic Power of a First-Class Sorcerer.” Eme-chan explained.
”Is that… a big deal?” I asked.
”Yes, it is. The Emmeld Kingdom has more superior Sorcerers than other nations, and some high-ranking ones are called Gurus¹. But a Magical Girl’s Magic Power easily surpasses even those Gurus.”
I don’t really understand what a Sorcerer is like in this world. But it seems a Magical Girl is categorized as an anomalous being, even by the standards of those who wield Magic Power.
For one thing, no existing Sorcerer can actually fly, apparently.
Yet Eme-chan flew constantly, used sorcery², and swung her sword to defeat demon monsters.
Despite constantly consuming Magic Power, she’s only dropped to about half.
That level of consumption would take even a high-ranking Sorcerer several days to recover from.
”Well, the techniques she’s been using are probably low-consumption sorcery² to begin with. Full-blown attack magic would drain Magic Power incredibly fast, duh!” Ami-chan interjected.
”In any case, the Magical Girl’s strength is truly incredible. If you had five of them, couldn’t you conquer a small country?” Eme-chan marveled.
”Well, I’d prefer that strength be used to develop the Dominion and deal with your pursuers, Ami-chan,” I pointed out.
Given such immense power, it seems best to gather more of them. I don’t have any means to fight other than my Water Splendor Flash and I must protect myself in this dangerous world. I think the fact that I no longer have to worry about my lifespan is a huge factor in this selfish thought.
”Even though Magical Girls are that powerful, Shou’s Quester Level going up will increase their base stats too!” Ami-chan announced.
”It does?”
”Yep. So, helping with the Dominion’s development also means increasing the Magical Girl’s power.”
She’d also mentioned that my weapon would evolve, which seems to be connected to the Quester Level as well.
”And! By consuming a huge amount of Ego Points, you can temporarily boost an arbitrary Magical Girl’s stats!” Ami-chan revealed.
”Meaning… she’d become even stronger than she is now?”
”That’s the idea! But the consumption is seriously no joke. If you tried it with the points you have right now, you wouldn’t be able to apply the boost at all,” she chuckled.
That’s incredible. I thought I’d earned a substantial number of points last night, but it seems I’m still nowhere near enough.
”Ami. If her Magic Power runs out and the transformation is canceled… how can she transform again?” Cleonora asked, ever practical.
”Re-transformation is impossible until her Magic Power is Max Recovered. Also, if the transformation breaks from massive damage, half of her remaining Magic Power is erased. In that case, too, she’ll need a Max Recovery before transforming again.” Ami-chan stated.
”Max Recovery… about how long does that take?” I pressed.
”The recovery speed varies by individual, but full recovery from zero takes at least three days. It could take up to ten days for some.”
What the… it seems the supposedly invincible Magical Girl has a major weakness.
Essentially, once the transformation is canceled, there’s an intermission before she can transform again. Getting attacked during that time would be disastrous.
If the transformation is broken by major damage or sleep, the days until Max Recovery will be fewer. But if it runs out of Magic Power completely, the next transformation will take a very long time.
”It probably won’t run out of Magic Power that easily, but it would be a huge problem if it did,” Eme-chan worried, carefully assessing the risks. It’s only natural for her to seriously consider how to best utilize the strength she’d just gained.
”But wait, there’s an easy way to fully restore a Magical Girl’s Magic Power!” Ami-chan suddenly cheered.
”Huh?”
”The answer is simple! Receiving the Quester’s essence… which is to say, being creampied!” Ami-chan announced.
”H-huh…?”
It turns out my S**en has a Magic Power recovery effect on a Magical Girl.
There are no requirements for position or that she must climax; simply do it inside is enough.
S**en-based Magic Power supply for a Magical Girl… this sounds like it would make for a very thick fan novel.
”What’s more! By continually receiving the Quester’s essence for Magic Power supply, the Magical Girl’s Magic Power maximum value will gradually increase! Meaning, the more Magic Power she’s supplied with, the more total Magic Power she can handle!” Ami-chan exclaimed.
”I… I see…”
Eme-chan’s cheeks turned completely red again.

This is amazing, though. There are only benefits for the Magical Girl from having s*x with me, aren’t there?
That’s great, but one thing still worries me.
”Ami-chan. What about… the risk of pregnancy?” I asked, nervous.
I welcomed the Creampie Magic Power Supply, but if she were to get pregnant, it would be a huge problem if enemies attacked.
”Magical Girls basically don’t get pregnant. So, when she’s in Emerald’s form, no matter how much you do it, she won’t get pregnant, got it?” Ami-chan assured me.
”Oh…”
Is that so… and wait, I can have s*x with her while she’s in her Emerald form too!? That sounds incredibly transgressive…!
”And when she’s in Cleonora’s form, I can control the probability of pregnancy by consuming Ego Points. It’s not much of a drain, and I can easily make the adjustment. Just tell me if you want to try for a baby for real, kay?”
”…………”
I suddenly feel like—even now—I’ve signed a contract with a truly unbelievable entity.
—
Summary:
The detailed Magical Girl Rulebook is unveiled, explaining the massive power difference between her and native Sorcerers (she’s 5x a First-Class Sorcerer and surpasses a Guru). The crucial weakness is revealed: the transformation breaks on sleep or full Magic Power drain, leading to a long 3-10 day recovery period, making the Magical Girl vulnerable.
The explicit, system-mandated solution is that the Quester’s S**en, delivered via internal ejaculation, serves as an instant Magic Power battery and Max Value enhancer. Ami-chan also confirms that the smaller Magical Girl form is fully non-pregnant, while the regular form’s pregnancy risk is easily controlled by Ego Points. Shouichi is overwhelmed by the sheer scale of the power and the s*xually transactional nature of his contract.
—
Character Insight:
Shouichi’s sense of moral ambiguity increases as the rules force him into a dominating, almost transactional s*xual role that serves both his survival and his power-up goals. The ability to easily control pregnancy eliminates his last major pragmatic reservation about maximizing his pleasure/power gains. Eme-chan/Cleonora shows a mix of intellectual interest in the mechanics and intense embarrassment over the explicit, required s*xual solution, highlighting the clash between her princess dignity and her new Magical Girl reality. Ami-chan is confirmed as the playful, all-powerful system administrator who finds amuS**ent in the rules she sets.
—
Behind the Scene:
This chapter is the hard-rule setter for the series, establishing the S**en-as-Resource mechanic—a staple of this genre—and the power-balancing weaknesses of the otherwise invincible Magical Girl. The long recovery period is a narrative tool to prevent overuse and force the Quester into a proactive role in both combat and s*xual maintenance. The reveal that the ‘loli’ form (Eme-chan) has zero pregnancy risk clears the path for the protagonist’s more transgressive s*xual desires to be indulged without consequence, justifying the dual-form heroine structure.
Notes:
• Cleonora – The second princess. Have a yellow blonde hair. Usually styled as hairbun.
• Emerald – Magical Girl version of Cleonora. Smaller, side-tailed, green-and-white mini-skirted girl.
• Ami – A palm-sized fairy-like being from a world separate from both Earth and the isekai realm. She has light blue hair tied in a ponytail, mischievous blue eyes, and tiny wings that flutter behind her. Her outfit consists of a provocative high-cut leotard and a short jacket that looks like a miniskirt from the back, leaving her legs bare. Despite her playful appearance, she is actively searching for a contractor who can protect her from dangerous pursuers in exchange for the powers she offers.
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Edited by Kanaa-senpai.
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